翻訳と辞書
Words near each other
・ Silica (disambiguation)
・ Silica fiber
・ Silica Formation
・ Silica fume
・ Silica gel
・ Silica granuloma
・ Silica, Kansas
・ Silica, Minnesota
・ Silica, Rožňava District
・ Silica, West Virginia
・ Silica, Wisconsin
・ Silicate
・ Silicate (AI)
・ Silicate mineral paint
・ Silicate minerals
Silicate perovskite
・ Silice
・ Silicene
・ Siliceous dinoflagellate cysts
・ Siliceous ooze
・ Siliceous rock
・ Siliceous sponge
・ Silichy
・ Silicibacter
・ Silicibacter pomeroyi
・ Silicic
・ Silicic acid
・ Siliciclastic
・ Silicide
・ Silická Brezová


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Silicate perovskite : ウィキペディア英語版
Silicate perovskite
Silicate perovskite is the term given to (Mg,Fe)SiO3 (also known as bridgmanite〔(【引用サイトリンク】title=Bridgmanite )〕) and CaSiO3 (calcium silicate) when arranged in a perovskite structure. Silicate perovskites are mainly found in the lower part of Earth's mantle, between about . They are thought to form the main mineral phases, together with ferropericlase.
Natural silicate perovskite was discovered in a heavily shocked meteorite.
In 2014, the Commission on New Minerals, Nomenclature and Classification (CNMNC) of the International Mineralogical Association (IMA) approved the name bridgmanite for perovskite-structured (Mg,Fe)SiO3,〔 in honor of physicist Percy Bridgman, who won the Nobel Prize in Physics in 1946 for his high-pressure research.〔(Eos, Transactions American Geophysical Union, Volume 95, Issue 23, Article first published online: 10 June 2014 PDF )〕
==Abundance==
Silicate perovskite may form up to 93% of the lower mantle and the magnesium iron form is considered to be the most abundant mineral in the Earth, making up 38% of its volume.〔
Under the very high pressures of the lowermost mantle, below about 2700 km, the silicate perovskites are replaced by post-perovskite.
The physical properties of silicate perovskites under lower mantle conditions, such as seismic velocity, are studied experimentally using laser-heated diamond anvil cells. Naturally occurring silicate perovskites cannot be studied as they are unstable at the Earth's surface.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Silicate perovskite」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.